TS803CXARF [TSC]
Microprocessor Reset Circuit; 微处理器复位电路
| 型号： | TS803CXARF |
| 厂家： | 
TAIWAN SEMICONDUCTOR COMPANY, LTD |
| 描述： | Microprocessor Reset Circuit |
| 文件： | 总6页 (文件大小：286K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TS803
Microprocessor Reset Circuit
SOT-23
Pin Definition:
TS803
TS803R
1. Ground
2. Reset
3. Vcc
1. Reset
2. Ground
3. Vcc
General Description
The TS803/TS803R are microprocessor (µP) supervisory circuit used to monitor the power supplies in µP and digital
systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments
when used with +5V, +3.3V, +3.0V powered circuits. These circuits perform a single function: they assert a reset
signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms
after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply
voltages are available. The TS803/TS803R are open –drain outputs. The TS803/TS803R have an active low RESET
output, while the TS803/TS803R has an active high RESET output. The reset comparator is designed to ignore fast
transients on VCC, and the output guaranteed to be in the correct logic state for VCC down to 1V. Low supply correct
makes the TS803/TS803R ideal for use in portable equipment.
Features
Ordering Information
●
Precision monitoring of +3V, +3.3V & +5V power
Part No.
Package
Packing
supply voltage
TS803CXx RF
TS803RCXx RF
SOT-23
SOT-23
3Kpcs / 7” Reel
3Kpcs / 7” Reel
●
●
●
●
●
●
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Fully specified over temperature
Available in three output configurations
Open-Drain RESET low output
3uA supply current
Note: x is the threshold voltage type, option as
TS803 Threshold Voltage
A : 4.63V
E : 2.93V
I : 2.0V
B : 4.38V C : 4.00V D : 3.08V
F : 2.63V G : 2.32V H : 2.1V
J : 1.8V
Guaranteed reset valid to Vcc = +1V
Power supply transient immunity
No external components
K :1.6V
TS803R Threshold Voltage
Applications
B : 4.20V E : 2.93V F : 2.70V
Contact factory for additional voltage options.
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Computers
Controllers
Intelligent Instruments
Critical uP and uC power monitoring
Portable / Battery Power Equipment
Automotive
Absolute Maximum Rating
Parameter
Symbol
VCC
Value
Unit
V
Supply Voltage
7
RESET & (RESET) Open Drain
Input Current, VCC
VRESET
ICC
- 0.3 ~ (VCC +0.3)
V
20
20
100
B
mA
mA
V/uS
Output Current, RESET
Rate of Rise, VCC
IO
VR
ESD Classification
Note: Stress above the listed absolute maximum rating may cause permanent damage to the device
HBM B: 2000V~3999V
1/6
Version: A07
TS803
Microprocessor Reset Circuit
Recommended Operating Conditions
Parameter
Symbol
VCC
Value
<5
Unit
V
Supply Voltage
Operating Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Thermal Resistance
TA
-40 ~ +85
-40 ~ +125
-65 ~ +150
325
oC
TJ
oC
TSTG
Θjc
oC
oC/W
mW
S
Power Dissipation
PD
350
Lead Soldering Temperature (260oC)
TLEAD
10
Electrical Characteristics Ta=25oC, unless otherwise specified.
Parameter
Conditions
Ta=-40oC~+85oC
Symbol
Min
1.0
--
Typ
--
Max
Unit
Input Supply Voltage
VCC
ICC
5.5
3
V
VCC ≤ VTH * 1.1
--
Supply Current
Reset Threshold
uA
V
VIN = 3V, Ta=-40oC~+85oC
--
--
5
VTH
0.985
|VTH|
1.015
|VTH|
--
--
VTH
0.97
|VTH|
1.02
|VTH|
Reset Threshold
(Full temperature range)
V
Reset Threshold
VTH
3-0
50
160
ppm/ oC
Temperature Coefficient
VCC to Reset Delay
VCC = VTH to (VTH - 100mV)
Ta=-40oC~+85oC
--
0.5
--
40
1.5
--
--
5
uS
mS
V
TDELAY
VOL
Reset Active Timeout Period
RESET Output Voltage Low
VCC < VTH(MIN), ISINK =1.2mA,
VCC > VTH(MAX), ISOURCE =500uA
VCC > 1.8V
0.5
RESET Output Voltage High
VOH
0.8 VCC
--
--
V
VCC > VTH(MAX), ISOURCE =150uA,
1.8V >= VCC > 1V
Note 1: The data based on VTH = 2.7V part type.
Note 2: Guaranteed by Design
2/6
Version: A07
TS803
Microprocessor Reset Circuit
Function Block
Function Description
Typical Application Circuit
Timing Diagram
Electrical Characteristics Curve
Figure 2. Reset Time vs. Temperature
Figure 1. Glitch Rejection
3/6
Version: A07
TS803
Microprocessor Reset Circuit
Electrical Characteristics Curve (Continue)
Figure 3. Iin vs. Temperature
Figure 4. Reset Vth vs. Temperature
Figure 5. Iin vs. Vin
Figure 6. Threshold Hysteresis vs. Temperature
Figure 7. Reset VOL vs. Temperature
4/6
Version: A07
TS803
Microprocessor Reset Circuit
SOT-23 Mechanical Drawing
SOT-23 DIMENSION
MILLIMETERS
MIN MAX
0.95 BSC
1.9 BSC
2.60
INCHES
MIN MAX.
DIM
A
A1
B
C
D
E
F
0.037 BSC
0.074 BSC
3.00
1.70
3.10
1.30
0.10
0.50
0.20
0.60
10º
0.102
0.118
0.067
0.122
0.051
0.004
0.020
0.008
0.024
10º
1.40
2.80
1.00
0.00
0.35
0.10
0.30
5º
0.055
0.110
0.039
0.000
0.014
0.004
0.012
5º
G
H
I
J
5/6
Version: A07
TS803
Microprocessor Reset Circuit
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to any
intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for
such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale
and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability,
or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers
using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for
any damages resulting from such improper use or sale.
6/6
Version: A07
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